James i



lUNiTaD STATES lArnNt trice.

JAMES I. METTLER, OF ORESTON, ILLINOIS, ASSIGNOR OF ONE-HALF TO WILLIAM MCBRIDE, OF SAME PLAGE. l

GRINDSTONE APPARATUS.

SPECIFICATION ormingpart of Letters Patent No. 313,877, dated March 17, 1885.

Application filed May 9, 1884.

To L7/Z whom, t may con/cern:

Beit known that I, JAMEs I. METTLER, a citizen of the United States of America, residing at Creston, in the county ot' Ogle and State of Illinois, have invented certain new and useful Improvements in Apparatus for Grindstones, of which the following is a specication, reference being had therein to the accompanying drawings.

This invention relates to grindstoncs and apparatus for the same; and it consists in certain improvements in such apparatus, as hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a grindstone and supporting frame provided with my improvements. Fig. 2 is a side view ot' the same, part being shown in section.

A designates the side pieces of the frame in which the shaft a of the grindstone B has its bearings` On each end ot' said shaft is fixed a crank-arm, b, which is connected by a rod, d, with one of the treadles O. rlhe said treadles are provided at their rear ends with the foot-pieces c, and are secured at their forward ends to the outer sides of legs D of the frame by means of bolts which pass through the legs and treadles and also through the iron straps e, which are fastened. to the inner sides of the treadles and extend along theinner sides of the legs D. The treadles thus attached are prevented from swinging laterally during operation.

E indicates a sliding seat placed on the frame and adjustably secured thereto by means of a screw-bolt, f, and a cross-bar, g, held against the under surfaces of the side pieces, A, said bolt passing downward from the seat through the cross-bar and being secured by a nut. The seat is adjusted in position forward or backward to suit the convenience of the operator, who operates the treadles C with his feet.

Fis a fender placed in front of the operators seat E, to which it is adjustably secured by a bolt and thumb-nut, h, said bolt passing from the seat through a slot in connecting-piece i. The fender serves as a shield for the operator against fwater thrown from the grindstone,

(No model.)

and also as a rest for a chisel or other article being ground. The operator is thus enabled to hold such article steadily in position against the stone, and a more perfect edge and even bevel are obtained.

G indicates a tank or bucket placed on an elevation or frame mounted on the main f rame, said tank being provided with a faucet and being in position to discharge water onto the grindstone.

The seat being secured to the frame in snitable position by means ot' bolt f and cross-bar g the operator sits on the seat astride 'the frame, placing his feet on the foot-pieces c, and by means of the treadles drives the grind- .stone after the manner of driving a bicycle.

I-Ie holds the tool to be ground against the top of the fender F with the edge against the stone, and the fenderresting on the frame catches any water that may be thrown from the grindstone toward him.

Vhen it is desired to remove the seat and fender, the bar g is loosened by slightly turning the nut on bolt f, when the lbar may be turnedto aposition lengthwise with the frame, and the seat may then be raised and removed.

Having described my invention, I claiml. A grindstone mounted on a suitable frame, in combination with a seat that is adjustably secured to the frame and a waterfender that is adjustably secured to the seat, substantially as described.

2. In combination with side pieces, A, of the frame, a seat with fender F secured thereto, said seat being provided with bolt f and cross-bar g, substantially as shown and described.

3. In combination with the grindstone and frame, the treadles O, connected with crankarms b,the adjustable seat with bolt fand bar g, the adjustable fender F, connected to said seat, and tank G, the parts being constructed and arranged substantially as set forth.

Intestimony whereof I have affixed my signature in presence of two witnesses.

JAMES I. MET'ILER.

Witnesses:

WM. C. AGNEW, EDWARD LEAOH. 

